文档介绍：Company number【1089WT-1898YT-1W8CB-9UUT-92108】
学前加减法口算题,每
2+18=
18-6=
16-1=
2+12=
5+11=
17-7=
5+1=
10-1=
12+5=
11-2=
15+1=
19-11=
10+9=
16-7=
2+15=
16-15=
15+3=
9-4=
20-1=
11-10=
6+8=
2+5=
2+6=
10+1=
17-16=
13+4=
20-1=
1+2=
20-3=
2+7=
19-6=
15-12=
9+1=
14-1=
5+2=
13+7=
19-4=
3+5=
17+3=
3+8=
8+4=
17+3=
17+3=
4+12=
14+3=
1+14=
1+5=
3+14=
13-3=
10+2=
9-8=
12-8=
2+5=
19-18=
14+3=
17-3=
9-4=
6+13=
13+5=
3+7=
12+3=
5+6=
17-1=
5+2=
7+7=
6+7=
12-11=
20-13=
13+6=
15-5=
20-1=
5+8=
18-12=
7+1=
20-6=
8+6=
3+13=
1+19=
17-16=
7+13=
10-2=
11+6=
1+8=
14+2=
9+5=
2+10=
1+12=
8+12=
11-10=
3+3=
3+17=
8+4=
8+2=
2-1=
1+4=
9+9=
8+7=
20-18=
19-5=
5+6=
20-3=
17-10=
1+16=
9+1=
9+10=
10-2=
18-17=
6+14=
18-8=
9+6=
8-6=
7-5=
13+2=
19-12=
11+9=
17-12=
16-4=
13-1=
16-8=
2+12=
2+8=
15-8=
19-16=
19-4=
14+3=
3+4=
19-17=
5-1=
15+5=
20-1=
19-10=
7-1=
6-3=
6+13=
11-3=
11+7=
10+4=
20-15=
17-7=
7-6=
19-16=
14+3=
5+8=
20-19=
5+13=
1+8=
9+7=
13-2=
9-1=
17-9=
6-1=
18-4=
14-13=
10-1=
15-2=
12-2=
3+5=
9+5=
13-1=
18-13=
12+8=
11+7=
6+7=
15-5=
16-5=
12-1=
4+5=
13+4=
5-2=
7-2=
5+3=
4+12=
15+5=
12+1=
3+7=
14-6=
7+8=
3+6=
16-6=
19-16=
20-9=
11-9=
13-7=
4+11=
1+18=
19-18=
7+13=
1+7=
13+2=
17-8=
17-7=
2+5=
3-2=
7+10=
16-10=
5+6=
11-10=
18-16=
14-2=
18-2=
11+7=
7+12=
9-1=
10-8=
20-15=
10-9=
20-8=
20-11=
20-5=
20-18=
14+2=
14-10=
6+11=
12+7=
12-10=
14+5=
18-4=
9+8=
6+3=
16-4=
18-12=
1+17=
14+2=
4+4=
10-2=
14-6=
12-6=
12+6=
11-3=
15+2=
5+13=
9+6=
2+1=
16-14=
1+8=
4+12=
3+13=
14-3=
18-5=
7+6=
12+1=
12-1=
19-15=
18-1=
13-11=
16+1=
9-2=
16-7=
16-15=
18-14=
18-5=
16+4=
20-16=
17-5=
20-19=
10-5=
11-4=
1+8=
16-11=
17-5=
6+2=
6+10=
14-9=
18-11=
2+13=
6+8=
13-12=
13-3=
8+5=
19-4=
19-18=
7-4=
6+13=
17-3=
1+17=
20-6=
7-2=
5-2=
7+3=
14-2=
15+4=
14-8=
17-6=
11-2=
20-15=
6+2=
11-8=
9-4=
16-6=
14+1=
2+5=
2+17=
2+10=
8+12=
14+3=
8-2=
17+1=
20-5=
18-13=
11-9=
18-15=
15-9=
1+8=
19-14=
10+5=
19-12=
20-13=
12-9=
18-6=
14-8=
7+8=
18-14=
11-8=
8-7=
17+3=
1+3=
7-4=
2+5=
5-2=
14-3=
8+9=
13-1=
9+3=
7+12=
17-